SEO: robots.txt, sitemap, Organization & Event schema; dashboard fmtTime fix; frontend updates

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/app/(public)/events/[id]/EventDetailClient.tsx

@@ -5,7 +5,7 @@ import Link from 'next/link';
 import Image from 'next/image';
 import { useLanguage } from '@/context/LanguageContext';
 import { eventsApi, Event } from '@/lib/api';
-import { formatPrice } from '@/lib/utils';
+import { formatPrice, formatDateLong, formatTime } from '@/lib/utils';
 import Card from '@/components/ui/Card';
 import Button from '@/components/ui/Button';
 import ShareButtons from '@/components/ShareButtons';
@@ -54,21 +54,8 @@ export default function EventDetailClient({ eventId, initialEvent }: EventDetail
     setTicketQuantity(prev => Math.min(maxTickets, prev + 1));
   };
 
-  const formatDate = (dateStr: string) => {
-    return new Date(dateStr).toLocaleDateString(locale === 'es' ? 'es-ES' : 'en-US', {
-      weekday: 'long',
-      year: 'numeric',
-      month: 'long',
-      day: 'numeric',
-    });
-  };
-
-  const formatTime = (dateStr: string) => {
-    return new Date(dateStr).toLocaleTimeString(locale === 'es' ? 'es-ES' : 'en-US', {
-      hour: '2-digit',
-      minute: '2-digit',
-    });
-  };
+  const formatDate = (dateStr: string) => formatDateLong(dateStr, locale as 'en' | 'es');
+  const fmtTime = (dateStr: string) => formatTime(dateStr, locale as 'en' | 'es');
 
   const isCancelled = event.status === 'cancelled';
   // Only calculate isPastEvent after mount to avoid hydration mismatch
@@ -228,8 +215,8 @@ export default function EventDetailClient({ eventId, initialEvent }: EventDetail
                       <div>
                         <p className="font-medium text-sm">{t('events.details.time')}</p>
                         <p className="text-gray-600" suppressHydrationWarning>
-                          {formatTime(event.startDatetime)}
-                          {event.endDatetime && ` - ${formatTime(event.endDatetime)}`}
+                          {fmtTime(event.startDatetime)}
+                          {event.endDatetime && ` - ${fmtTime(event.endDatetime)}`}
                         </p>
                       </div>
                     </div>